14. Glycolysis reactions take place in: in mitochondria in the cytoplasm in the endoplasmic reticulum in the cytoplasm and in the nucleus

## Step 1<br />Glycolysis is the first step in cellular respiration, where glucose is broken down into pyruvate. This process is crucial for the production of ATP, which is the primary energy currency of the cell.<br />## Step 2<br />Glycolysis does not occur in the mitochondria, endoplasmic reticulum, or nucleus. These organelles have different functions in the cell.<br />## Step 3<br />Glycolysis takes place in the cytoplasm of the cell. This is because the cytoplasm provides the necessary environment for the enzymes involved in glycolysis to function effectively.